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Optional Equipment
9.2.2 Adjust the discriminator
The discriminator serves to filter certain materials. So it is possible to ”exclude“ for example worthless
iron and steel objects. Or people who are hunting for treasures and gold are able to exclude other
materials with the help of this discriminator.
In figure 9.5 the regulator to adjust the discrimination is represented. This regulator can filter certain
materials. Table 2 explains the adjustment in the case of normal ground conditions
Adjustment
Indicated materials
0
All metallic objects
3
Iron, gold, bronze, silver, aluminium
5
Gold, bronze, silver, aluminium
7
Silver, aluminium
10
Aluminium
Table 2: Standard adjustment of the discrimination
When you adjust the regulator for discrimination on gold, the detector reacts besides gold also on
bronze, silver and aluminium. To find out if there is really gold in the ground you have to follow the
following instructions:
1. Switch the discriminator on gold and start your soil examinations until you reach a place where
the detector reacts positive, which means you can hear an accustical sound signal.
2. Now switch the discriminator on silver and examine this place again. Following there will be two
possibilities:
•
The detector reacts positive! The material under the ground is not gold, but could be
silver or aluminium.
•
The detector does not react! There is probably golden material in the ground but also
bronze is possible.
Please consider that you always should do the ground balance, which is explained in this following
section.
1 The indications from table 2 concern the use in normal type of soil. In extreme conditions (mineralisation, salt
deposits, ... ) they can variate from this normal value.
OKM Ortungstechnik GmbH
Illustration 9.5: Adjustment of discrimination
